fix(core): Improve heartbeat handling and transport routing; forward heartbeat timeout events; include clientId routing and probe improvements

ts/classes.ipcclient.ts

@@ -75,7 +75,10 @@ export class IpcClient extends plugins.EventEmitter {
             clientId: this.clientId,
             metadata: this.options.metadata
           },
-          { timeout: registerTimeoutMs }
+          { 
+            timeout: registerTimeoutMs,
+            headers: { clientId: this.clientId }  // Include clientId in headers for proper routing
+          }
         );
 
         if (!response.success) {
@@ -194,10 +197,20 @@ export class IpcClient extends plugins.EventEmitter {
       this.emit('disconnect', reason);
     });
 
-    this.channel.on('error', (error) => {
+    this.channel.on('error', (error: any) => {
+      // If heartbeat timeout and configured not to throw, convert to heartbeatTimeout event
+      if (error && error.message === 'Heartbeat timeout' && this.options.heartbeatThrowOnTimeout === false) {
+        this.emit('heartbeatTimeout', error);
+        return;
+      }
       this.emit('error', error);
     });
 
+    this.channel.on('heartbeatTimeout', (error) => {
+      // Forward heartbeatTimeout event (when heartbeatThrowOnTimeout is false)
+      this.emit('heartbeatTimeout', error);
+    });
+
     this.channel.on('reconnecting', (info) => {
       this.emit('reconnecting', info);
     });